[Solved] Citroen C5 MKII - Automatic transmission error P0977 AISIN AM6

Hello

I have such a problem with the AISIN AM6 gearbox.
After buying the car drove and nothing happened. It happened about three weeks without driving and problems started with the box. Original mileage 170,000. motor 2.0 HDI 138HP.
After driving a few kilometers, the gearbox falls into emergency mode, until then the gears enter as they should be. And the same happens when I start the car after a night and warm up at a standstill and enters the emergency mode. The error is P0977 '' Solenoid S2 output short to + or open.
Could it be the fault of the gearbox controller itself or the solenoid valve itself
Where to look for this solenoid after removing the entire disc
When I remove the disc, how much oil will be lost

You don't take off the whole plate, just unscrew the cover and it will be visible. To begin with, you drain the oil and then the cover. The oil drain plug is also a condition check when pouring.

romuald-f
Thanks for the help.
At the beginning I will replace the driver (maybe it is broken)
Today, after starting the car at night, at idle the gearbox went into emergency mode after warming up and the same error.

Does this solenoid valve push in quality? or is it screwed in?

It is screwed on.

Thank you very much

Added after 6 [hours] 18 [minutes]:



And in this picture it is the opposite.

So how is it finally the right picture?

Replacing the S2 solenoid valve did the trick.